Roll20 5e Char Sheet - Hit Dice accidentally deleted, how to get it back?

Short story long, I was reviewing some of the newer Short/Long rest buttons added to the sheet for some tips for my own macros, when I accidentally deleted the HIT DICE roll data for one of my characters.  I cannot see a means to add this back to the character sheet.  I can unlock the Hit Dice section, but have nothing to press to re-add the information. Any assistance would be greatly appreciated. D. Frayne Bourne

I think I figured out a work around...go into settings and re enter the Hit Dice value int eh upper right.  Not sure if that was intended functionality (it is a bit wonky to be able to delete something but not re-add it where it was deleted, but I am back to square again. D. Frayne